Unit Converter - Length

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Metric Kilometre (km) Metre (m) Decimetre (dm) Centimetre (cm) Millimetre (mm) Micrometre (µm) Nanometre (nm) Angstrom (Å)   British/American League Mile (mi) Furlong Chain Rod (rd) Yard (yd) Foot (ft) Link Hand Inch (in) Line Mil (mil) Thou (thou)   Nautical Sea mile Fathom   Astronomical Parsec (pc) Light year Astronomical unit (AE) Light minute Light second 0 decimals 1 decimals 2 decimals 3 decimals 4 decimals 5 decimals 6 decimals 7 decimals 8 decimals 9 decimals 10 decimals

A kilometre (US spelling: kilometer; symbol: km) is a unit of length that is equal to 1,000 metres, the current International System of Units (SI) base unit of length. The kilometre is part of the metric system. A corresponding unit of area is the square kilometre and a corresponding unit of volume is the cubic kilometre.
In general English usage, length (symbols: l, L) is one particular instance of distance: an object's length is its extent along its longest dimension. This is to be contrasted with height, denoting vertical extent, and width (or breadth), denoting a lateral extent along a dimension shorter than an object's length. In the physical sciences and engineering, the word "length" is typically used synonymously with "distance". >> Read more